Adding and Subtracting fractions (including mixed fractions)

The number on top of the fraction bar is called the _______. The number under the fraction bar is called the ______.

• denominator; numerator
• numerator; denominator
• mixed number; fraction
• fraction; mixed number

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

2/12 + 3/12

• 5/12
• 5/24
• 6/12
• 6/144

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Is this a correct answer?

• Yes, the student correctly added.
• No, you cannot add unlike denominators
• No, 5 + 7 is not 12
• No, 2 + 3 is not 5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What must you do first in order to add or subtract fractions with unlike denominators?

• add the numerators
• add the denominators
• find a common denominator
• find a common numerator

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

5/7 + 1/28 = 

• 6/35
• 12/196
• 21/28
• 1

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Solve this equation using the least common denominator.
¼ + ½

• 3/4
• 2/8
• 6/4
• 6/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

⁷/₈ - ²/₈

• ⁵/₁₆
• ⁹/₈
• ⁶/₈
• ⁵/₈

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

8/9 - 1/3 = 

• 7/6
• 5/9
• 2/3
• 8/27

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

4/5 - 1/20 = 

• 0
• 20/15
• 3/15
• 15/20

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Solve this mixed number equation:
1⅔ + 1⅚

• 3 1/2
• 2 7/6
• 3 7/6
• 2 7/9

Tags

CCSS.7.NS.A.1C